Meprolight Tru-Dot Night Sights for Glock 17 19 20 21 Adjustable
MeprolightThe Meprolight Tru-Dot Adjustable Night Sights for Glock 17, 19, 20, and 21 deliver combat-proven, self-illuminating performance that gives shooters a decisive edge in low-light and no-light conditions — day or night, always ready.
- Self-luminous tritium vials glow continuously — no batteries or charging required
- Adjustable rear sight allows precise windage and elevation tuning
- Compatible with Glock 17, 19, 20, and 21 — direct-fit replacement
- Ruggged steel construction withstands hard use and harsh environments
- Trusted by law enforcement agencies and military units worldwide
- Integrated day/night design maintains full visibility in bright conditions
Who This Is For
These night sights are ideal for concealed carry holders, home defenders, competitive shooters, and law enforcement professionals who rely on their Glock in any lighting condition. If you carry or stage a Glock for personal protection and refuse to compromise on sight picture quality when the lights go out, the Meprolight Tru-Dot is the upgrade your pistol deserves.
Specifications
| Brand | Meprolight |
|---|---|
| Model | Tru-Dot Adjustable Night Sights |
| Compatible Firearms | Glock 17, 19, 20, 21 |
| Illumination Type | Self-luminous tritium (no batteries) |
| Adjustment | Adjustable rear (windage & elevation) |
| Sight Color | Green tritium vials |
| Construction | Steel housing |
| Installation | Direct replacement, minor fitting may apply |
| Tritium Warranty | 12 years (typical Meprolight standard) |
| Country of Origin | Israel |
Frequently Asked Questions
Do the Meprolight Tru-Dot sights require any batteries or activation to glow?
No. Meprolight Tru-Dot sights use self-luminous tritium gas vials that emit a continuous glow 24/7 without any batteries, charging, or exposure to light. This means your sights are always ready the moment you need them, whether it's a pitch-dark room or a dimly lit parking lot.
Will these sights fit my specific Glock model, and is installation difficult?
These Tru-Dot sights are specifically designed to fit the Glock 17, 19, 20, and 21 as direct replacement parts. Installation typically requires a sight pusher tool or a visit to a qualified gunsmith — the same standard process used for most aftermarket Glock sights. Minor fitting adjustments may occasionally be needed depending on your pistol's generation and slide tolerances.
How long will the tritium illumination last, and what happens after it dims?
Tritium has a half-life of approximately 12 years, meaning the sights will remain bright and fully functional for well over a decade of regular use. After that period, the glow gradually dims but the sights continue to function as high-quality steel day sights. Meprolight typically covers tritium brightness for 12 years under their standard warranty.